Henkel K-450 User manual

Brand: Henkel

Model: K-450

Type: User manual

Henkel K-450 is a compact and energy-efficient oven designed for storage and stabilization of electrodes. The 2-inch insulation and heat-exchanging shelving system provide temperature uniformity and minimize variance throughout the oven. The adjustable thermostat allows for precise temperature control, ranging from 150ºF to 550ºF, accommodating the requirements of various electrode types. This oven also includes a screened vent plug for proper ventilation. With a capacity of 450lbs of 18-inch rods, it offers ample space for electrode storage.

Henkel, Inc.

P.O. Box 1322

Hammond, LA

70404

(985) 345-2171

www.keenovens.com

Henkel, Inc.

P.O. Box 1322 * Hammond, Louisiana * 70404 * (985) 345-2171

www.keenovens.com

Models K-450 Bench Type

Installation Instructions & Repair Parts List

One Year Limited Warranty

Henkel, Inc. warrants its products against defects in material and workmanship. Henkel,

Inc. will either repair or replace without charge any properly installed product which fails

under normal operating conditions within one year from date of installation, provided it is

returned to our factory, transportation prepaid, and our inspection determined it to be

defective under the terms of this warranty. The warranty covers only equipment

manufactured by Henkel, Inc., and does not extend to transportation, installation, or

replacement charges at the buyers’ facility; nor does it apply to any other equipment of

another manufacturer used in conjunctions with Henkel, Inc. equipment. No other

warranty, expressed or implies exists beyond that included in this statement.

Recommended Spare Parts

When it is critical to have continuous operation of this unit,

we suggest having the following spare parts on hand:

Heating Element

Power Cord

Thermostat

K-450 Accessories List

Stack Kit: allows for stacking or piggybacking of two (2) K-450 ovens

Thermometer Kit

General Information

The K-450 oven with its superior structural design and energy efficient heat exchange will

provide many years of durable, trouble free service.

Keen Ovens

K-450 SPECIFICATIONS

Electrode Capacity 450lbs. 18" rods

Volts 120 V 240 V 480 V

Watts 1000W 1000W 1000W

Thermostat Dial Adjustable

Temperature 150ºF-550ºF

Insulation 2"

Interior Dimensions 19.5"D X 20"

Net Weight 81lbs.

Shipping Weight 86lbs.

Shipping Dimensions 26" X 28" X 26"

Safety Precautions

Read all instructions completely before attempting to operate this unit.

*** SAVE THESE SAFETY INSTRUCTIONS ***

To reduce the risk of electrical shock, fire, or personal injury follow the guidelines below:

• Before connecting unit to a power source, be sure the voltage supplied is the same as that

specified on the nameplate of the unit.

• Check outlet to ensure proper grounding of the electrical cable. Have a licensed electrician

check the A/C power outlet if you are not sure.

• Use this unit for its intended purpose as described by literature.

• Make sure power cord is located so that it will not be stepped on, tripped over, or otherwise

subjected to stress of heat, oil, or sharp edges. Do not close doors on the cord.

• To reduce the risk of damage to the electric plug and cord, disconnect by plug rather than by

the cord.

• Do not use this unit if cord or plug is in poor condition. If it has been exposed to weather or

immersed in water, have a qualified serviceman inspect and replace parts as necessary.

• WARNING! NEVER HANDLE PLUG, CORD, OR UNIT WITH WET HANDS OR

WHILE STANDING IN WATER.

• Use special care when moving heavily loaded units.

• Do not store combustible material on or around the unit.

• Do not operate this unit empty.

• When using the unit at a distance where an extension cord becomes necessary, a 3-conductor

grounding cord of adequate size must be used for safety, and to prevent loss of power and

overheating. Use only a UL listed extension cord suitable for outdoor use. Make certain wire

size is large enough for A/C amperage rating of unit.

Operation

Load oven with desired amount of electrodes. To turn on the unit, simply plug the power

cord into appropriate single phase A/C source and adjust thermostat to desired setting. (Check

nameplate for voltage.) The 120V units are supplied with a three conductor 8” power cord. The

240V and 480V units are supplied with an 8’ UL listed 16/3 SJ power cord (plug not provided).

All units meet electrical code requirements when used with a grounding plug and a grounded

receptical.

*** CAUTION!! DO NOT USE ON D/C POWER SUPPLY! ***

Temperature Setting

The thermostat is adjustable from 150ºF (37.8ºC) to 550ºF (287.8ºC). Turn thermostat

knob to desired temperature by aligning with red line on chrome bezel. Pilot light indicates when

power is supplied to the heating element. The thermostat is accurate to ±23ºF (14ºC) at the

sensor. Temperature variance is minimal throughout the oven due to the heat exchanging

qualities of the Keen shelving system.

** CAUTION!! Surface temperature of heating element will exceed 500ºF.

Electrodes adversely affected by high heat should be stored on upper shelves of oven. **

Guide to Storage

See the enclosed guide to storage. This guide may be used in the absence of storage

information from the electrode manufacturer. In critical situations, contact your electrode

manufacturer.

Functional Description

These models are designed for the small to medium shop. They allow storing at optimum

temperature, protecting electrodes from harmful moisture. These ovens are compact and energy

efficient, therefore an economical buy. All bench types are thermostatically controlled. The shelf

design accommodates 50lb. electrode containers eliminating the need to remove the rods from

the container. Loose electrodes may also be stored in shelf compartments.

Scheduled Maintenance

The manufacturer recommends that the unit be unloaded and cleaned of debris and dust

every six months. It is recommended that a temperature probe be placed inside the unit and the

thermostat calibration checked at this time.

Venting

Your model K-450 oven is vented through a screened plug at the rear of the oven.

Troubleshooting

The Keen oven model K-450 requires a minimal amount

of electrical knowledge to repair if necessary.

IF OVEN FAILS TO OPERATE – NO HEAT

1. Check power source.

2. Check power cord continuity. Replace cord assembly if faulty.

3. If pilot light glows, voltage is being supplied to he heating element. Check element

continuity. If defective, replace.

4. If thermostat cannot be heard clicking on and off when dial is rotated, and if pilot light fails

to operate, replace thermostat

IF OVEN OVERHEATS

1. If oven fails to cycle on and off and reaches a temperature above 550ºF, thermostat is faulty

and needs replacing.

2. If oven operates but is off from setting see calibration instructions.

Corrective Maintenance

CHANGING THE HEATING ELEMENT

1. Disconnect power source and remove any rods from oven.

2. Remove element cover.

3. Remove element mounting nuts and top ceramic insulators.

4. Remove nine (9) mounting screws from leg assembly and lift oven clear of leg.

5. Remove wire connectors from element leads.

6. Remove old element from oven by lifting element over mounting bolts and pulling element

leads through conduit. Remove bottom ceramic insulators.

7. Install new male ceramic insulators, element, female insulators and hex nuts.

8. Insert element leads through conduit and reconnect with original electrical leads.

9. Replace front leg assembly being sure wiring is not crimped between leg and oven wall.

Model K-450 Wiring Diagrams

120 Volts / 1000 Watts

15 AMP/ 125-Volt Grounding Plug

NEMA 5-15P Provided

CHANGING THE THERMOSTAT

1. Disconnect from the power source.

2. Remove rods from oven.

3. Remove element cover and pull temperature-sensing

tube from holder.

4. Loosen setscrew in thermostat knob and remove knob.

Remove chrome mounting ring (bezel).

5. Remove nine (9) mounting screws from leg assembly

and lift oven clear of leg

6. Remove electrical leads from thermostat and remove

thermostat by pulling sensing tube through conduit.

7. To replace new thermostat, pass sensing tube through

conduit, being sure there is adequate length to reach the

holder.

8. Reconnect electrical leads to new thermostat and mount

thermostat to chrome ring (bezel) loosely with red indicting

line in upward position. Place knob on thermostat stem and

check rotation of knob. When knob turns freely, remove and

tighten chrome mounting ring (bezel)

240 Volts / 1000 Watts

Grounding Plug

NEMA 5-15P

9. Replace leg assembly being sure wiring is not

crimped between oven wall and leg.

10. Replace thermostat knob.

11. Insert temperature-sensing tube into holder and

replace element cover.

THERMOSTAT CALIBRATION

1. Turn on unit. Set control dial at desired

temperature.

2. Allow control to cycle at least three times and

observe temperature at middle of fourth cycle.

3. If calibration is required, carefully remove dial

knob. Do not turn shaft.

480 Volts / 1000 Watts

20 AMP/ 480-Volt

Grounding Plug NEMA 8-20P Not Provided

4. Turn calibration screw in center of dial shaft.

(Turning set screw clockwise decreases temperature.

Turning setscrew counter-clockwise increases

temperature. One-fourth [1/4] turn equals

approximately 35ºF.)

5. Allow unit to cycle at least three times and

observe temperature at middle of fourth

cycle. Readjust calibration screw if

necessary. Replace dial knob

Model K-450 Repair Parts List

ITEM # QUAN./UNIT DESCRIPTION PART NUMBER

1 1 Shelf Assembly

2 1 Handle 430102

3 1 Collar

4 1 Vent Plug 490108

5 1 Magnets 490103

6 1 Leg

7 1 Neon Pilot

301085

301101

8 1 Thermostat 301038

9 1 Power Cord 301155

10 1 Elements 301027

301125

301129

11 1 Element Cover

12 1 Name Plate 450103

13 1 Strain Relief 301043

480V/1000W

120V/240V

480V

240V1000W

120V1000W

** Please state model number and serial number and specify voltage and wattage when ordering repair parts, spare

parts, or accessory parts. All necessary attaching hardware is supplied with each part ordered.

(Item numbers refer to pictorial

drawings below for repair parts.)

HENKEL, INC.

Manufacturer of KEEN Ovens

Quality Since 1923.

Phone (985) 345-2171

Fax (985) 345-5653

PO Box 1322

Hammond, Louisiana

70401

Flux and Electrode Stabilizing Guide

After Exposure to Moisture a

Sufficient Time to affect Weld Quality

Type (AWS)

Air Conditioned

Storage

Before Opening

Dry Rod

Oven Holding

After Opening

Recondition

Step 1

Rebake

Step 2

180°F ± 25°

two hours

240°F ± 25°

one hour

Standard

EXX10

EXX11

EXX12

EXX13

EXX20

EXX30

80°F ± 20°

60% ± 10% RH

140°F ± 30°

Three hour total

180°F ± 25°

two hours

325°F ± 25°

one hour

Iron Powder

EXX14

EXX24

EXX27

90°F ± 20°

50% RH max

140°F ± 30°

Three hour total

180°F ± 25°

two hours

700°F ± 100°

one-half hour

Iron Powder-

Low Hydrogen

EXX18

EXX28

90°F ± 20°

50% RH max

400°F ± 50°

Two & one-half hour total

180°F ± 25°

two hours

600°F ± 100°

one-half hour

Low Hydrogen

EXX15

EXX16

90°F ± 20°

50% RH max

400°F ± 50°

Two & one-half hour total

180°F ± 25°

two hours

700°F ± 100°

one-half hour

Low-Hydrogen

High Tensile

EXXX15

EXXX16

90°F ± 20°

50% RH max

400°F ± 50°

Two & one-half hour total

180°F ± 25°

one hour

350°F ± 50°

one hour

Stainless

Inconel

Monel

Nickel

Brasses

Bronzes

Hard Surfacing

Special Alloys

90°F ± 20°

50% RH max

225°F ± 50°

Two hour total

Granulated or

Agglomerated

Flux

90°F ± 20°

50% RH max

240° F ± 50°

Not required

700°F ± 100° ∅

two hours

CONTACT YOUR ELECTRODE MANUFACTURER FOR SPECIFIC INFORMATION INVOLVING

CRITICAL OPERATIONS.

Electrode coating should not be exposed to the rebaking temperature without first having been reconditioned at a lower

temperature. Failure to observe this rule will result in breakdown of electrode coatings.

After rebake

lower tem

erature to holdin

level until reissue.

Note: In the HTS

Stainless electrode

groups, and 15 & 16

type coatings, there can

be a greater difference

in the maximum

temperature

requirements for

rebaking than those

shown. This can be

handled by special

request to the particular

manufacturer involved.

IMPORTANT:

This table is offered as a

guide to proper storage

and oven holding

temperatures for the

most common electrodes

in use today. In

addition,

recondition/rebake

procedures for electrode

coatings that have been

exposed to moisture for

a sufficient period of

time to affect the weld

quality are included.

Good judgment and the

manufacturer’s

recommendations should

be your guide.

Henkel K-450 User manual

Brand: Henkel

Model: K-450

Type: User manual

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Henkel K-450 User manual

Henkel K-450 User manual

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